Viscosity detection sampling device for production of conductive silver paste

Abstract

The utility model relates to sampling device technical field, and disclose a kind of viscosity detection sampling device for conductive silver paste production.The viscosity detection sampling device for conductive silver paste production, comprising: tank;Sampling tank is located in the side of the tank, the sampling tank is used to sample conductive silver paste in sealed state;The stirring rod is connected in the top of the tank by mechanical seal, the first motor is connected in the top of the stirring rod by fastener, the negative pressure generated when extracting and excess conductive silver paste are pushed to the inside of tank by piston movement, until piston and rubber ring move to the junction of extraction pipe and sampling tank, piston is blocked up sampling tube by rubber ring, open electric valve, the conductive silver paste in the inside of sampling tank is moved to the inside of discharge pipe by solenoid valve opening, i. e. it can be realized to make the sampling of tank in sealed state, then the viscosity of the extracted conductive silver paste is detected, and the practicability of the device is embodied.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically a viscosity testing and sampling device for conductive silver paste production. Background Technology

[0002] Silver conductive pastes are divided into two categories: polymer silver conductive pastes and sintered silver conductive pastes, which are sintered into films at temperatures >500℃, with glass powder or oxides as the binder phase.

[0003] In the production of conductive silver paste, the raw materials for the conductive silver paste are produced through mixing equipment. During the production process, it is necessary to take samples of the conductive silver paste produced to test its viscosity.

[0004] However, in existing conductive silver paste production equipment, during the mixing and stirring of conductive silver paste, some processes require the internal structure of the production equipment to be sealed. If sampling is required, it will damage the conductive silver paste during production. Existing sampling devices cannot sample and monitor the viscosity of the conductive silver paste inside the sealed production equipment, thus reducing the effectiveness of use.

[0005] Furthermore, when using the sampling device in the existing production equipment to sample conductive silver paste, the container needs to be manually moved below the outlet, and after sampling, it needs to be moved to the rotational viscometer for viscosity testing. This requires staff to perform manual sampling regularly, which is time-consuming, labor-intensive, and reduces work efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a viscosity testing and sampling device for the production of conductive silver paste, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a viscosity detection and sampling device for conductive silver paste production, comprising:

[0008] Tank body;

[0009] A sampling container located on the side of the tank body is used to sample conductive silver paste in a sealed state;

[0010] The top of the tank is connected to a stirring rod via a mechanical seal. The top of the stirring rod is connected to a first motor via fasteners. The first motor is connected to the top of the tank via fasteners. The side of the tank is connected to an extraction tube via a through-hole connection. The other end of the extraction tube is connected to the inside of the sampling tank via a through-hole connection. A piston is provided inside the sampling tank. The top of the piston is fixedly connected to the bottom of a moving rod. A measuring cup is provided at the bottom of the sampling tank.

[0011] Preferably, the outer wall of the piston is wrapped with a rubber ring, the piston is movably connected to the inner wall of the sampling container, the moving rod is connected to the top of the sampling container by sliding, and the side of the sampling container is connected to the container body by fasteners.

[0012] Preferably, the top of the movable rod is connected to the output end of the electric push rod via fasteners, and the electric push rod is connected to the outer wall of the tank via fasteners.

[0013] Preferably, the bottom of the sampling tank is connected to the top of the electric valve via a flange, the bottom of the electric valve is connected to the discharge pipe via a flange, and the measuring cup is located below the discharge pipe.

[0014] Preferably, the outer wall of the measuring cup is connected to the inner side of the retaining ring by a snap-fit ​​mechanism, the outer wall of the retaining ring is connected to the outer wall of the rotating block by fasteners, the bottom of the retaining ring is connected to a pad by fasteners, the pad is located at the bottom of the measuring cup, and the side fasteners of the pad are connected to a locator.

[0015] Preferably, the bottom of the rotating block is connected to the top of the column by rotation, the bottom of the column is connected to the outer wall of the tank by fasteners, the inside of the column is connected to a second motor by fasteners, and the output shaft of the second motor is connected to the bottom of the rotating block by fasteners.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0017] Firstly, this utility model, by incorporating a sampling canister and a piston, enables the sampling of conductive silver paste inside the canister under sealed conditions. When viscosity testing of the conductive silver paste produced inside the canister is required, the electric push rod is activated. The output end of the electric push rod moves, causing the moving rod to move upward. The moving rod then moves the piston, and the piston and rubber ring generate suction through the sampling canister. The sampling canister draws the conductive silver paste inside the canister to the bottom of the sampling canister via the extraction tube. Then, the electric push rod is controlled to move the moving rod downward, causing the moving rod to move the piston. The piston pushes the negative pressure generated during extraction and excess conductive silver paste into the canister until the piston and rubber ring reach the connection between the extraction tube and the sampling canister. The piston then blocks the sampling tube through the rubber ring. The electric valve is then opened, allowing the conductive silver paste inside the sampling canister to move into the discharge tube through the solenoid valve. This achieves sampling while the canister is sealed, and the viscosity of the extracted conductive silver paste is then tested, demonstrating the practicality of this device.

[0018] Secondly, this invention, by incorporating a rotating block and a retaining ring, can automatically collect conductive silver paste samples from different time periods. The conductive silver paste samples flow through the discharge pipe to the outside and fall into the measuring cup. When it is necessary to collect samples from another time period, the second motor is activated. The second motor drives the rotating block to rotate via its output shaft. The rotating block, through the retaining ring and pad, moves the measuring cup. A positioner moves different measuring cups below the discharge pipe. After sampling the conductive silver paste from different time periods, the measuring cup is pulled outwards, causing the retaining ring to expand, allowing the measuring cup to be moved to the outside. The conductive silver paste inside the measuring cup is then moved to a rotational viscometer for viscosity testing. This eliminates the need for manual replacement of the measuring cup at regular intervals, saving time and effort and effectively improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a schematic diagram of the piston and sampling tube structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the pad and retaining ring structure of this utility model.

[0023] The components are: 1. Tank body; 2. First motor; 3. Sampling tank; 4. Electric push rod; 5. Electric valve; 6. Discharge pipe; 7. Measuring cup; 8. Stirring rod; 9. Moving rod; 10. Piston; 11. Rubber ring; 12. Second motor; 13. Extraction pipe; 14. Column; 15. Rotating block; 16. Snap ring; 17. Pad; 18. Positioner. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 A viscosity testing and sampling device for conductive silver paste production, comprising:

[0026] Tank 1;

[0027] The sampling container 3 is located on the side of the container 1. The sampling container 3 is used to sample the conductive silver paste in a sealed state.

[0028] A stirring rod 8 is mechanically sealed to the top of tank 1. A first motor 2 is fastened to the top of stirring rod 8, and the first motor 2 is fastened to the top of tank 1. An extraction tube 13 is connected to the side of tank 1 via a through-hole connection. The other end of the extraction tube 13 is connected to the interior of sampling tank 3 via a through-hole connection. A piston 10 is located inside sampling tank 3, with the top of piston 10 fixedly connected to the bottom of a moving rod 9. A measuring cup 7 is located at the bottom of sampling tank 3. When it is necessary to sample the conductive silver paste produced inside tank 1 for viscosity testing, the electric push rod 4 is activated. The output end of the electric push rod 4 moves, causing the moving rod 9 to move upwards. The moving rod 9 then moves piston 10. The movement of piston 10 and rubber ring 11 generates suction through sampling tank 3. The sampling canister 3 draws the conductive silver paste inside the canister 1 through the extraction tube 13 to the bottom of the sampling canister 3. Then, the electric push rod 4 drives the moving rod 9 to move downward. The moving rod 9 drives the piston 10 to move. The movement of the piston 10 pushes the negative pressure generated during extraction and the excess conductive silver paste into the canister 1 until the piston 10 and the rubber ring 11 move to the connection between the extraction tube 13 and the sampling canister 3. The piston 10 blocks the sampling tube through the rubber ring 11 and opens the electric valve 5. The electric valve 5 opens and the conductive silver paste inside the sampling canister 3 moves into the discharge tube 6 through the solenoid valve, thus achieving sampling in a sealed state in the canister 1. Then, the viscosity of the extracted conductive silver paste is tested, demonstrating the practicality of this device.

[0029] Specifically, the outer wall of the piston 10 is wrapped with a rubber ring 11, the piston 10 is movably connected to the inner wall of the sampling container 3, the moving rod 9 is connected to the top of the sampling container 3 by sliding, and the side of the sampling container 3 is connected to the container body 1 by fasteners.

[0030] Through the above technical solution, the rubber ring 11 is made of rubber material, the piston 10 is used to form a seal with the sampling canister 3 through the rubber pad, five pads 17 and retaining rings 16 are set around the rotating block 15, and five measuring cups 7 are also set at the same time, so that the conductive silver paste of five time periods can be automatically sampled.

[0031] Specifically, the top of the moving rod 9 is connected to the output end of the electric push rod 4 via fasteners, and the electric push rod 4 is connected to the outer wall of the tank 1 via fasteners.

[0032] Through the above technical solution, the moving rod 9 is used to drive the piston 10 to move up and down. When the piston 10 moves upward, it will generate suction inside the sampling tank 3. When it moves downward, it will transfer the pressure inside the tank 1 back into the tank 1.

[0033] Specifically, the bottom of the sampling tank 3 is connected to the top of the electric valve 5 via a flange, the bottom of the electric valve 5 is connected to the discharge pipe 6 via a flange, and a measuring cup 7 is provided below the discharge pipe 6.

[0034] With the above technical solution, the electric valve 5 is closed when the piston 10 draws the conductive silver paste inside the tank 1 through the extraction tube 13, and is open when the piston 10 drives the rubber ring 11 to move again to the connection between the extraction tube 13 and the sampling tank 3.

[0035] Specifically, the outer wall of the measuring cup 7 is connected to the inner side of the retaining ring 16 by a snap-fit ​​mechanism. The outer wall of the retaining ring 16 is connected to the outer wall of the rotating block 15 by fasteners. The bottom of the retaining ring 16 is connected to the pad 17 by fasteners. The pad 17 is located at the bottom of the measuring cup 7. The side of the pad 17 is connected to the locator 18 by fasteners.

[0036] Through the above technical solution, the positioner 18 is used to position the pad 17 during movement. The model of the positioner 18 is XY-RS, which makes it easy to shut off the second motor 12 after each new measuring cup 7 moves below the discharge pipe 6.

[0037] Specifically, the bottom of the rotating block 15 is connected to the top of the column 14 by rotation, the bottom of the column 14 is connected to the outer wall of the tank 1 by fasteners, the inside of the column 14 is connected to the second motor 12 by fasteners, and the output shaft of the second motor 12 is connected to the bottom of the rotating block 15 by fasteners.

[0038] Through the above technical solution, the motor and the output shaft are integrated. The motor rotates through the output shaft. The motor is a servo motor. The first motor 2 is used to drive the stirring rod 8 to rotate, which is used to produce conductive silver paste inside the tank 1. The motor model is: ECMA-C1-0604-RS servo motor.

[0039] In use, first turn on the electric push rod 4. The output end of the electric push rod 4 moves, causing the moving rod 9 to move upward. The moving rod 9 moves the piston 10. The piston 10 and the rubber ring 11 move, generating suction through the sampling canister 3. The sampling canister 3 draws the conductive silver paste inside the canister 1 through the extraction tube 13 to the bottom of the sampling canister 3. Then, control the electric push rod 4 to move the moving rod 9 downward. The moving rod 9 moves the piston 10. The piston 10 moves, pushing the negative pressure generated during extraction and excess conductive silver paste into the canister 1 until the piston 10 and the rubber ring 11 move to the connection between the extraction tube 13 and the sampling canister 3. The piston 10 then blocks the connection through the rubber ring 11. Hold the sampling tube and open the electric valve 5. The electric valve 5 opens the conductive silver paste inside the sampling tank 3 and moves it into the discharge pipe 6 through the solenoid valve. The conductive silver paste sample flows out through the discharge pipe 6 and falls into the measuring cup 7. When it is necessary to collect samples from another time period, turn on the second motor 12. The second motor 12 drives the rotating block 15 to rotate through the output shaft. The rotating block 15 drives the measuring cup 7 to move through the retaining ring 16 and the pad 17. The positioner 18 moves the different measuring cups 7 to the bottom of the discharge pipe 6. After sampling the conductive silver paste from different time periods of production, pull the measuring cup 7 outward. The measuring cup 7 drives the retaining ring 16 to expand, and the work is completed.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A viscosity testing and sampling device for conductive silver paste production, characterized in that: include: Tank body (1); The sampling container (3) located on the side of the container body (1) is used to sample the conductive silver paste in a sealed state; The top of the tank (1) is connected to a stirring rod (8) via a mechanical seal. The top of the stirring rod (8) is connected to a first motor (2) via fasteners. The first motor (2) is connected to the top of the tank (1) via fasteners. The side of the tank (1) is connected to an extraction tube (13) via a through-hole. The other end of the extraction tube (13) is connected to the inside of the sampling tank (3) via a through-hole. The inside of the sampling tank (3) is provided with a piston (10). The top of the piston (10) is fixedly connected to the bottom of a moving rod (9). The bottom of the sampling tank (3) is provided with a measuring cup (7).

2. The viscosity detection and sampling device for conductive silver paste production according to claim 1, characterized in that: The piston (10) is wrapped with a rubber ring (11) on its outer wall. The piston (10) is movably connected to the inner wall of the sampling container (3). The moving rod (9) is connected to the top of the sampling container (3) by sliding. The side of the sampling container (3) is connected to the container body (1) by fasteners.

3. The viscosity detection and sampling device for conductive silver paste production according to claim 1, characterized in that: The top of the moving rod (9) is connected to the output end of the electric push rod (4) by fasteners, and the electric push rod (4) is connected to the outer wall of the tank (1) by fasteners.

4. The viscosity detection and sampling device for conductive silver paste production according to claim 1, characterized in that: The bottom of the sampling tank (3) is connected to the top of the electric valve (5) via a flange, and the bottom of the electric valve (5) is connected to the discharge pipe (6) via a flange. The measuring cup (7) is located below the discharge pipe (6).

5. The viscosity detection and sampling device for conductive silver paste production according to claim 1, characterized in that: The outer wall of the measuring cup (7) is connected to the inner side of the retaining ring (16) by a snap-fit. The outer wall of the retaining ring (16) is connected to the outer wall of the rotating block (15) by fasteners. The bottom of the retaining ring (16) is connected to the pad (17) by fasteners. The pad (17) is located at the bottom of the measuring cup (7). The side of the pad (17) is connected to the locator (18) by fasteners.

6. The viscosity detection and sampling device for conductive silver paste production according to claim 5, characterized in that: The bottom of the rotating block (15) is connected to the top of the column (14) by rotation. The bottom of the column (14) is connected to the outer wall of the tank (1) by fasteners. The second motor (12) is connected to the inside of the column (14) by fasteners. The output shaft of the second motor (12) is connected to the bottom of the rotating block (15) by fasteners.

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